The Analog Output (AO) object provides an output between Min Out Value and Max Out Value, when the Present Value (appears as I1) is between the Min Value and Max Value. The output is spanned between the Min Out Value and Max Out Value as the Present Value changes from the Min Value to Max Value. The output is reliable when the Present Value is between Min Value and Max Value. You can use the value of this object in logic and to monitor the status of hardware.
The Present Value is almost always within the range of 0 to 100%, so the Min Out Value corresponds to the Output with an input signal of 0% and the Max Out Value corresponds to the Output with an input signal of 100%.
For example, for an EP-8000-2 at factory calibration, if you want 10 psi for the full closed position and 3 psi for the full open position:
Min Out Value = 50% (5 VDC)
Max Out Value = 15% (1.5 VDC)
As the present value increases from 0 to 100%, the Output moves from the Min Out Value to the Max Out Value.